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Boot On BTRFS With Debian

"BTRFS is an experimental filesystem, use at your own
risk. The kernel used is also experimental...

"Boot onto Debian CDrom, choose install and answer to the
questions until you have to partition the hard drive.

"Then you choose manual. We have to make at least 2 partitions
(I advise to do three) in order to be able to boot (I think that
GRUB doesn't support BTRFS boot yet so it will have its own
partition).

"The first one will contain the linux kernel and grub, the
bootloader, I will explain these terms later in the tutorial. I
think that 250MB will perform well for this partition.

Type : EXT2
Mount point : "/boot"
Bootable flag : yes.

"Then select "done with this partition". For the other one, you
can select to automatically create partitions or make it yourself
with mountpoint "/" and type "ext3" (you can take all the space if
you don't want swap otherwise reserve a space for swap with your
ram quantity in GB + 500MB to be able to hibernate)."